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About PHC

Eric E. Buck
President & CEO

Mr. Buck has served as President & CEO of Preferred Health Care since the beginning of 2004. In his role as President, Mr. Buck provides both operational and strategic leadership to PHC, drawing upon his more than 20 years of insurance and managed care industry experience. Eric has spent his entire career in the medical insurance business, holding a variety of leadership positions on both the insurance company and employer side of the medical benefits equations. Previously he was the CEO for a large purchasing group for employee benefits reaching across all of Pennsylvania, Vice President of Managed Care for a regional insurance company, and founder of a regional managed care company operating in Pennsylvania and Maryland.

Sherry Wolgemuth
Vice President of Operations

Mrs. Wolgemuth has been with PHC since 1994, serving in many operational and management capacities. She heads up PHC's Medical Services, IT, Claims, Customer Service, Provider Development and Administration Departments.

Dr. Nick Dragann
Medical Director

Dr. Dragann is an Osteopathic Family physician who has lived in Lancaster County for the past 40 years. He was raised in the Philadelphia suburbs, graduated from St. Josephs College and received his Osteopathic medical degree from the Philadelphia College of Osteopathic Medicine. After his internship training at the Lancaster Osteopathic Hospital, he opened a solo medical practice in the Intercourse area of eastern Lancaster County. After 25 years of Family practice, which included obstetrics, pediatrics, emergency, and adult / geriatric care, he retired. Since retirement, he has worked as a medical director at PHC, Amerihealth Mercy Health Plan and has now returned to PHC.

To contact by telephone: dial 717-560-9290 with extension listed:





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Gregory Bower

Director of Business Development

Business Development

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Sean McCormick

Business Systems Analyst

Executive/Administrative Services

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Jackie Heiserman

Credentialing Specialist

Provider Relations

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Amber Mamrak

Credentialing Specialist

Provider Relations

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Lynne Ostrowski

Manager of Provider Relations

Provider Relations

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Jessica Sorber, LPN

Care Coordinator

Medical Services

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Wanda Pitt, BSN, RN, CCM

Care Coordinator/Case Manager

Medical Services

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Kim Keith, RN, BSN

Nurse Coordinator, Wellness & Disease Management

Medical Services

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Michele Garcia

Customer Service Representative

Customer Service Representative

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Carmella Thomas

Customer Service Representative

Customer Service Representative

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Heather Hoover

Claims Support Coordinator


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Linette Torres

Claims Analyst


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Lorah Meixell

Compliance Coordinator


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Kelly Aponte

Executive Assistant


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Preferred Health Care
Urban Place • 480 New Holland Ave, Suite #7203 • Lancaster, PA 17602
Phone: 717-560-9290 • Fax: 717-560-2312 • Email: